Dr. Vespignani's research activity is focused on the study of techno-social
systems, where infrastructures composed of different technological layers are
interoperating within the social component that drives their use and development. In this
context we aim at understanding how the very same elements assembled in large number can
give rise – according to the various forces and elements at play – to different
macroscopic and dynamical behaviors, opening the path to quantitative computational
approaches and forecasting power. 

The main research lines pursued at the moment are: Developing analytical and
computational models for the co-evolution and interdependence of large-scale social,
technological and biological networks - Modeling contagion processes in structured
populations - Developing predictive computational tools for the analysis of the spatial
spread of emerging diseases - Analyzing the dynamics and evolution of information and
social networks - Modeling the adaptive behavior of social systems 



Characterizing scientific production and consumption in physics (with Qian Zhang, Nicola Perra, Bruno Gonçalves, and Fabio Ciulla), Physics Faculty Publications (2013)

We analyze the entire publication database of the American Physical Society generating longitudinal (50 years)...



The GLEaMviz computational tool, a publicly available software to explore realistic epidemic spreading scenarios at the global scale (with Wouter Van den Broeck, Corrado Gioannini, Bruno Goncalves, Marco Quaggiotto, and Vittoria Colizza), Physics Faculty Publications (2011)

Background: Computational models play an increasingly important role in the assessment and control of public...



Characterizing and modeling the dynamics of online popularity (with Jacob Ratkiewicz, Santo Fortunato, Alessandro Flammini, and Filippo Menczer), Physics Faculty Publications (2010)

Online popularity has an enormous impact on opinions, culture, policy, and profits. We provide a...



Diffusion of scientific credits and the ranking of scientists (with Filippo Radicchi, Santo Fortunato, and Benjamin Markines), Physics Faculty Publications (2009)

Recently, the abundance of digital data is enabling the implementation of graph-based ranking algorithms that...



Invasion threshold in heterogeneous metapopulation networks (with Vittoria Colizza), Physics Faculty Publications (2007)

We study the dynamics of epidemic and reaction-diffusion processes in metapopulation models with heterogeneous connectivity...